Signal from satellite tracked in moving vehicle. L-band, mechanically-steered, medium-gain antenna part of prototype radio equipment mounted in vehicle to demonstrate concept of land-mobile/satellite communication system. Provides such services as mobile telephone, voice or alphanumeric dispatch, paging, position-location information, and low-rate data transmission, for users within continental United States and Alaska. Antenna rotated mechanically until it finds direction from which maximum signal comes. Rate sensors provide inertial frame of reference during acquisition, so antenna locks onto signal even when vehicle turning.


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    Title :

    Mechanically-Steered, Mobile Satellite-Tracking Antenna


    Contributors:
    Bell, D. J. (author) / Berner, J. B. (author) / Jamnejad, V. (author) / Woo, K. E. (author)

    Published in:

    Publication date :

    1990-02-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




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